Selective system and printing telegraph apparatus



arch 5, 1940. E. E. KLEINSCHMIDT 2,192,359

SELECTIVE SYSTEM AND PRINTING TELEGRAPH APPARATUS Filed April 29, 1935 sShets-Sheet 1 BY MM %W ATTURNEYfi SELECTIVE SYSTEM AND PRINTINGTELEGRAPH APPARATUS Filed April 29, 1935 5 Sheets-Sheet 2 INVENTUR. Zona/a Z/(Z /wcA/W/ar ATTOR NE Y5 SELECTIVE SYSTEM AND PRINTING TELEGRAPHAPPARATUS T m M H C S m E L K E E Filed April 29, 1935 5 Sheets-Sheet 5wnw ATTORNEYS E. E. KLEINSCHMIDT I 2,1923% arch 5, 1340.

SELECTIVE SYSTEM AND PRINTING TELEGRAPH APPARATUS 5 Sheets-Sheet 4'Filed April 29, 1935 INVENTOR. Edward A? ff e/mm/dq MWM ATTORNEYSSELECTIVE SYSTEM AND PRINTING TELEGRAPH \PPARATUS Filed April 29, 1935 5SheetsSheet 5 INVENTOR.

ATTORNEYS UNITED STATES PATENT OFF-ICE SELECTIVE SYSTEM AND PRINTINGTELEGRAPH APPARATUS Edward E. Kleinschmidt, Highland Park, Ill.

Application April 29, 1935, Serial No. 18,888

64 Claims.

The present invention relates to selecting and printing apparatus foruse in telegraph circuits and more particularly to apparatus of the typein which the selection of characters to be printed is controlled bypermutation code signals.

Selective devices heretofore employed in telegraph receivers haveinvolved mechanical or electrical complications which were inherentbecause of the mode of operation of such previously'known devices. Theselecting mechanism embodied in the telegraph printing apparatus of mypresent invention operates in accordance with a new principle whichpermits the entire apparatus to be greatly simplified and to operatepositively in accordance with received signals.

Accordingly, the primary object of the present invention is to provide aform of selecting mechanism employing a new principle of operation. Morespecifically, an object of the present invention is to provide asimplified form of selection mechanism in which the code impulses act toaffect stops that directly and progressively position a printing memberso that a character is brought into the ultimate printing position whenthe last code signal of a code combination or group is received.

Another object of the present invention is to provide means to make thenew form of selecting mechanism adaptable to high speed printeroperation and to eliminate associated means for storing the selection orto provide overlap for the printing action.

A further object of the present invention is to provide a novelmechanism for automatically performing a plurality of functions afterreceipt of the last code signal of a code combination or group ofsignals.

Still further objects of the invention are to provide a simplifiedmechanism to select and operate the printer functions, such as shift,unshift, line space, carriage return, etc.

The foregoing and more specific objects of the invention will appear inthe following disclosure of a preferred form of 'my invention and frothe terms of the appended claims.

In the drawings:

Figure 1 is a view in front elevation of a page printer embodying thepresent invention, certain parts thereof being cut away for the sake ofclearness of. illustration.

Figure 2 is a plan view of the printer shown in Figure l.

Figure 3 is a view in elevation taken from the right hand side of Figure1 and shows the selecting mechanism.

Figure 4 is a fragmental view in elevation taken from the left hand sideof Figure 1 and discloses details of the function of the mechanism.

Figure 5 is a detailed view of the typewheel carrier. 5 Figure 6 is afragmental view showing further details of the function of the operatingmechanism.

Figure 7 is a fragmental view of a-portion of the letter feed mechanism.

Figure 8 is a detail view of the typewheel centering mechanism.

Figure 9 is a diagrammatic view in front elevation showing the relativepositions of the platen, typewheel and the side frame members.

Figure 10 is a fragmental detail view of the selector as seen from therear of Figure 1.

Figure 11 is a diagrammatic sectional view as seen from the right handside of Figure 1.

Figure 12 is a detailed view in plan of the portion of the mechanismshown in Figure 11.

Figures 13 through 16 show diagrammatically details of the mechanism foroperating the several printer functions.

Figure 17 is a fragmentary view of a modification of the functionoperating mechanism.

In the embodiment of my invention selected for illustration the usualfive unit code is utilized. to effect selective operation of thereceiver. The receivers and the transmitter operate together by startingthe receiver or receivers into operation at the beginning of eachcharacter signal by the transmission of a start or no current condition,the operation of the parts of the receiver mechanism being arrestedfollowing reception of the end of each signal group. While the specificembodiment of'the invention selected for illustration is arranged forstart stop working, the new principles employed in its operation andconstituting an important feature of the present 40 invention can beapplied to receivers operating continuously in synchronism with atransmitter. Referring to Figure 1, the supporting frame of the receivercomprises side frame members II and I2 which are secured to or areintegral with 5 a suitable base plate ll. The base plate l4 also servesas a support for'the driving motor iii, the driving shaft of which isconnected to or forms an extension of the main drive shaft i8 of theprinter mechanism. The sideframe members ll and I2 serve as supports forthe associated parts comprising the selector mechanism and the deviceswhich are controlled by the selector mechanism and driven by the motor6.

The magnet 20 which receives the line signals and controls the operationof the printer in accordance with the signals originating at atransmitter is carried by a frame 2| (Figures 1, 2 and 3), secured tothe frame member I I in any suitable manner as by the screws 22. The twospools or coils of the magnet fit over core pieces which rise from theyoke bar 23. The armature 24 of the magnet which comprises the aperturedears 26 is mounted on a pivot 21 in the frame 2|. The armature 24 iswithdrawn from the pole pieces of the magnet by means of a spring 28which is connected to a screw 28 for amusting the tension of the spring.The member 3| in addition to carrying the tension adjusting screw 28is'provided with adjustment screws 32 and 33 which cooperate with theportions of the armature 34 and 36 respectively and serve to limitmovement of the armature in both directions.

The rotatable character bearing element or typewheel 38 is secured to aspindle 38 (Figure 5) which is mounted for rotation in the arms 4| and42 of the movable typewheel carriage 43. The frame of the typewheelcarriage 43 is provided with spaced rearwardly extending arms 45 eachhaving a squared aperture 46 that fits over a squared shaft 48 on whichthe carriage 43 is slidably mounted. The shaft 48 is mounted in bearingsprovided therefor in the bracket member 48, and the frame member I2. Thebracket member 48 is suitably secured as by posts 58 to the printerframe member I I. The shaft 48 extends through and beyond the framemember I2 in which it is rotatably mounted for a purpose later to bedescribed. The paper platen 53 over which the paper sheet or web 55passes to receive character impressions from the typewheel 38 issupported in a manner to be described hereinafter. The paper sheet isfed from a storage roll 6| suitably suported from the main frame membersII and I2. It is guided by suitably positioned rollers 65 and isreceived on a fiat disc or guide 68.

Selector mechanism Rotary movement is imparted to the typewheel 38 bymeans of a suitable gear 5| on the spindle 38 which is in mesh with agear 52. has a squared opening in its hub and is slidably mounted upon asquared portion 54 of a rotatable shaft 56 which extends across theprinter and through the frames I I and I2 and is journaled in the frameI2. The shaft 56 is journaled in the hub 51 of a pair of constantlydriven gears 58 and 58. The integrally connected gears 58 and 58 aredriven from the motor I6 through an idler pinion 62 and the coaxialgears 63 and 64' which are interconnected by a pin 66 (Figure 10) Theidler gear 62 is rotatably mounted on a stud 61 secured to the framemember I I and the gears 63 and 64 are rotatably journaled on a selectordrive shaft 68, which is adapted at times to be frictionally driventhrough the friction de-.

vice 68. The shaft 56 is frictionally driven from the motor driven gear58 by means of a friction device which comprises friction members II andI2. The radial face of the driven disc 13 is pressed against the face ofthe gear 58 by means 'of a spring I4 which is secured to the shaft 56.

The driven disc 16 presses the friction member II against the radialface of a stop. finger assembly 11 which is secured to shaft 56 by meansof a set screw in the collar 18.

The stop finger assembly 11 comprises a series of stop plates or discs18 which are provided with five sets of stop fingers 8|, 82, 83, 84 and85. An

The gear 52 additional, or sixth set of stop fingers 86 of which thereare two placed diametrically opposite is provided on the stop fingerassembly I'i. All of the stop fingers of one set lie in the same planeand are adapted to cooperate with a pivoted stop lever. Five stopmembers or levers 8| to 86 are provided and are coordinated with thestop fingets in a manner to be explained. These five stop levers,together with an additional stop lever 86 are pivoted upon a stud 81secured in a suitable boss on the side frame II.

The stop fingers 8| to 85 are progressively doubled in number, that is,there are two stop fingers 85; four stop fingers 84; eight stop fingers83; sixteen stop fingers 82; and thirty-two stop fingers 8|. Each groupof stop fingers lies in its individual plane. The individual fingers arespaced equidistant with respect to each other and the groups of stopfingers 85,84, 83, 82 and 8| are assembled in relation to each other sothat they will form sixty-four equidistant stops. The two stop fingers86 are spaced circumferentially 90 degrees from the two stop fingers 85.This arrangement of the stop fingers 8| to 86 provides a total ofsixty-four stop positions for the shaft 56. The gear 52 has twice asmany teeth as the gear 5| providing a one to two ratio between thesegears so that the typewheel 38 makes one complete revolution for eachhalf revolution of the shaft 56. The typewheel 38 has two rows of type,each with thirty-two character positions. It should be noted that whilethe shaft 56 is driven by a frictional connection from the motor I 6,the stop finger assembly I7 and the typewheel 38 rotate in a fixed anddefinite relationship by reason of the positive interconnection of thegears 5| and 52. As the shaft 56 and its associated parts are relativelyheavy, high speed operation of the printer is facilitated by having therelatively light typewheel move through a greater angle than the shaftwhen a letter is positioned for printing.

The stop levers 8| to 86 are of the same form and stop lever 86 (Figure3) will be described as an example of all of the stop levers in the'set. The stop lever 86 is provided at its upper end with a tooth whichprovides a stop face 88 which is engaged by either one of the two stopfingers 86. Each one of the series of stop levers likewise is providedwith a stop finger engaging face 89, and it will be understood that theupper end of each stop lever is adapted for engagement only with theseries of stop fingers lying in the corresponding plane. The stop lever86 is provided with a bell crank portion |8| having a cam surface I82 atits end, the purpose of which will be later explained. Also, each stoplever is provided with a downwardly extending arm I83 having an inclinedface I84 adapted for cooperation with a latch bar I86 also having aninclined face, the said bar engaging the lower extremity of all of thestop levers. The latch bar I86 is provided with side arms I81 whichtogether with the latch bar form a U-shaped member and the arms I8I arepivoted upon a stud I88 projecting from and secured to the side framemember II. The latch bar I 86 is biased upwardly by means of a springI88 which is secured at one end to the frame II and to a portion of thearm I87 which extends beyond the pivot point I88. An eccentricadjustable stop III is provided for limiting the upward movement of thelatch bar I86. Each stop lever in its normal position is out ofengagement with its corresponding stop finger and the stop levers arebiased to this non-engaging position by means of springs N2 of which oneis provided for each stop lever. Also in normal position, the beveledend I04 of each stop finger lies above the beveled edge of the bar I06.The beveled edge of the bar I06 is inclined as shown in Figure 1 of thedrawings, being higher at its and adjacent the toe of the lever 95 andthe frame member II. The stop lever 96 has the least engagement and thelever 95 has the greatest engagement with the latch bar I96. Aneccentric adjustable stop I is provided for limiting the movement of thestop levers under the tension of the springs H2.

The latch bar I06 and the lower extremities of the stop levers 9| to 96are so coordinated that when a stop lever, for example stop lever 9|, isoperated, it presses the latch. bar I06 out of en-- gagement with apreviously engaged stop lever, for example lever 96, which is thereforereleased and drawn out of engagement with its corresponding stop fingerby a spring I I2. The inclination of the top edge of the bar I06 assiststhis action. In this instance the stop finger 96 is released permittingthe shaft 56 to turn until in the example given, one of the fingers 85engages with the stop lever 9|. It should be noted that the shaft 56 ispermitted to turn one-quarter of a revolution, that is to say, it ispermitted to rotate through ninety degrees, the typewheel makingone-half of a revolution. If the next stop lever 92 is operated then itwill release the stop lever 9| in the manner explained above and permitthe shaft 56 to turn until the next successive stop finger 84 engageswith the stop lever 92.

This action will permit the shaft 56 to rotate an additional one-eighthof a revolution to turn the type-wheel an additional quarter of arevolution. This action may be continued progressively provided that allof the remaining levers 93, 94 and 95 are operated in succession. Duringthis operation the typewheel will have made H of a revo-, lution.

Selective operation of the stop levers 9| to 95 will permit thetypewheel to assume any one of thirty-two positions of which twenty-sixare each provided with a letter of the alphabet. It will be understoodthat the spindle 39 carrying the typewheel 38 may be turned so that thetypewheel 38 will assume any one of its thirty-one positions to which itmay be moved from rest, the rest position making thirty-two selectionpositions. However, the typewheel will be provided with charactermarkings only at certain positions and will assume the remainingpositions during operation of the several functions in the manner to bedescribed.

As an example of selective operation of the stop fingers 9| to 95 andthe corresponding operation of the typewheel 38, it will be assumed thatstop lever 95 is operated. Then, upon the operation of this stop lever,the stop lever 96 is released in the manner described above. Stop lever95 will then be in position to engage with the first one of the stopfingers 8| encountered as the shaft 56 rotates in a counterclockwisedirection as viewed from Figure 3. This will permit the typewheel torotate of a revolution. Selection of any one of the stop levers 9| to95' 'will result in the typewheel assuming a different permit the shaft59 to turn until the first o! the series of stop fingers 94 comes intoengagement with the surface 99 of the stop lever 92, where it willremain until the stop lever 95 is operated which will act to release thestop lever 92. The lever 95 will therefore engage the next stop finger9| which lies in its path, permitting the typewriter to make of arevolution.

From the foregoing it will be seen that by varying the setting of stoplevers 9| to 95, the typewheel may be stopped in any position. Themechanism which selectively operates the stop levers 9| to 95 undercontrol of the line signals from recjeiving magnet will now be describedin deta The upstanding arm 96 of the magnet 20 is provided with a rollerII6 and a stud or stop III. A start-stop control arm 8 is pivoted on apost or stud -I I9, said post I I9 being secured to and projecting froman orientation plate I2I. The plate I2I is pivotally secured to theframe member II of the printer at a point coaxial with the shaft 68, andthis orientation plate I2I is provided with graduations which cooperatewith a pointer associated with a clamping screw I22. The end of thestart-stop control arm H8 is beveled as shown in Figure 10 and the stopIII. is

also beveled so as to facilitate cooperation of the stop with the arm H8in the manner to be described.

A spring I24 secured to the plate I2I and the rear cross bar I26 whichis integral with the lever II8- serves to bias the lever. 8 forcounterclockwise rotation as viewed in Figure 3. A stop I25 is providedfor the lever 8. This tendency to counterclockwise rotation of lever H8is restrained normally by the armature of the magnet 20 when the latteris in its normal or energized position. The lever H8 is provide'd'withtwo extensions I28 and I29 having hook-shaped ends. I'he extension I29normally engages with an arm |3I that is attached to a rotating andfrictionally driven selecting element I32 which is carried by androtates with the shaft 68. When rotation of the shaft is permitted byrelease of the extension I29 from the arm |3| the shaft 68 isfrictionally driven by the interconnected coaxial gears 63 and 64through the device 69. The stop control arm I I8 is restored to itsnormal position of engagement with the stud III by an arm I34 whichrotates with and is carried by the rotary selecting mechanism I32. Therotating selecting device 'I32 comprises two spider shaped plates I36and I3! which carry at the ends of their axially aligned spider armsfive selecting transfer elements designated by reference characters |4|to I45, inclusive. These selecting transfer elements are mounted uponpivots I46 carried by the axially aligned spider arms of the plates I 36and I3! and each of the selecting transfer elements comprises a lug I41and an upwardly extending finger I48. All of the lugs I41 are locatedadjacent the plate I36 and lie in one plane so as to be in the path ofthe roller II6 when the armature 24 of the magnet 20 is attracted andthese lugs are out of the path of the roller when the armature 24 isreleased upon deenergization of the magnet 20. The fingers I48 arelocated in different planes so as to align with the ends I02 of the stoplevers 9| to 95. The finger|48 of the selecting transfer element I4Iwill engage only the stop finger 9| and the finger I48 of the selectingtransfer element I42 will engage only the stop finger 92- and thefingers I48 of the three remaining selecting transfer elements I43, I44and I45 will engage the stop levers 93, 94 and 95 respectively. Thefinger of the selecting transfer element I45 which engages the arm IOIof the stop lever 95 is formed directly from the material of the innerside of the element I45.

The selector mechanism so far described performs all of the functions ofthe rotary switching distritutor and selecting magnets or mechanicalselecting devices of printing telegraph receivers known to the prior artand eliminates the necessity for selector bars or discs which are anessential part of printers known heretofore and in which the selectionmust be stored for printing.

The speed of the motor I6 is governed or a motor having the proper speedcharacteristics is chosen so that the rotating selector element I32 willrotate at such a speed as to bring the finger I48 of the transferelement I45 under the stop lever 95 as the last of the five signals ofthe letter signal combination is received. The arrangement of the partsas shown is for operation in a normally closed circuit five unitpermutation code telegraph system, commonly designated as the Baudotcode start-stop system. In such systems the receiver is usually startedby a no current signal followed by five signals of various combinationsto select the desired letter and further followed by a current signalwhich latter signal is continued between the sending of the five codeombination signals. While the armature 24 of the magnet 20 is attracted,all of the mechanism of the receiver with the exception of the motor andthe gears driven thereby is held stationary. When the armature 24 isreleased by a no current signal, the start stop bar H8 is released fromthe stud II'I permitting the rotary selecting element to rotate in aclockwise direction as viewed on Figure 3. It will be assumed that thecode combination of signals for selecting the letter A is to be receivedwhich combination requires two current impulses followed by three nocurrent impulses and positioning of the typewheel for selection of thisletter will be described. The armature 24 of the magnet 20 will beattracted immediately after it has released the member I3I fromengagement with the extension I29 and the roller II6 will engage withthe first depending lug I41 of the selecting transfer element I4 I.While this lug I41 rides over the roller II6 which is positioned in itspath, the finger I46 of the selection transfer element I will engagewith the stop lever 9| causing the same to be placed in the path of thefirst stop finger 85 of the stop finger assembly I1. As previouslyexplained, this action releases the stop arm 96 from engagement with thestop finger 86 thereby permitting the shaft 56 to revolve until the stopfinger 85 engages the stop lever 9|. Since the second letter combinationsignal received by the magnet 20 is also a current impulse, the armature24 will remain attracted and the roller II6 will engage with the lug Iof the selection transfer element I42 causing the finger I48 of thistransfer element to position the stop lever 92 in the path of the nextstop finger 84 and causing release of the stop finger 9| in the mannerpreviously explained. The shaft 56 will revolve until the first finger84 engages the stop lever 92. Since the third, fourth and fifth signalsof the letter combination received on the magnet 20 are no currentimpulses, the armature 24 will be released and the roller I I6 taken outof the path of the lugs I" of the selecting transfer elements I43, I44and I45 and no further positioning of the stop fingers takes place. Theshaft 56 remains at its last position, that is, with stop finger 84engaged by stop lever 92 and the typewheel 38 during this time will havemade of a revolution which is the position for the letter A. Printing ofa character selected in this manner and other functions and operationsin connection therewith will be explained hereinafter.

Just before the rotary selecting device I32 completes one revolution,the start-stop control lever II8 will be restored by the arm I34 whichacts as a cam to move the member I28 to the right as viewed on Figure 3,bringing the arm I29 into the path of the arm I3I. The rotatingselecting element I32 will come to a stop by engagement of the arm I3Iwith the extension I29. The arm H8 is held in restored position by thestop III until the next no current start condition is received. Duringthe last part of the rotation of the rotary selecting device I32 andafter the printing of the selected letter, a cam II secured to a discmember of the friction device 69 (Fig ure and rotating with the shaft 68operates a lever I53 which is pivoted on the post I 88. This lever I53is engaged by an arm I54 which projects through an aperture in the framemember II into the path of the lever I53. The cam I5I moves the leverI53 downwardly and by its engagement with the lug I54 withdraws thelatch bar I06 from engagement with the stop levers 9| to 96, thuspermitting the last of the stop levers which was set up for a selectionto be restored. During the time of the release operation of the latchbar I06 by the cam I5I and the arm I53, the stop lever 96 is pushed intostop finger engaging position by a cam I58 and held there until thelatch bar I06 is again restored to its normal position by passage of thecam I5I. The stop lever 96 is then held in finger engaging position.

As stated above, the angular position of the r0- tary selecting elementat the time of release is adjustable by means of the orientation plateI2I so that the rotary cycle is started with proper orientation. I

In further explanation of the metod of operation just described, let itbe assumed that the type wheel and the stop finger assembly II are atrest and the stop lever 96 is in contact with stop finger 86. This isthe normal rest position between the reception of character signals whensuch signals are sent intermittently as from keyboard transmission. If,however, groups of character impulses are sent to the receiver withouttime interval, as would be the case when transmission is from acontinuously running perforated tape, then the stop finger 86 is notalways in contact with stop lever 96 (depending on the setting of thestop finger assembly 11 by the previous selection) when the first signaloperates the stop lever 9 I. In such case there will be suflicient timefor the correct setting of the type wheel during the subsequentselective operation due to the fact that the stop finger assemblyrotates at a higher speed than the selector I32. A satisfactory ratiobetween the typewheel 38 and the selector element I32 has been found byactual practice to be approximately two and one-half to one. Since thestop finger assembly rotates at one-half the speed of the type-wheel,the former will revolve at about one and one-quarter times the speed ofthe stop position by the cam I58. All of this happens before the signalsof a subsequent letter are received so that a considerable interval oftime elapses between the release of the stop finger assembly 11 from aprevious setting and the setting of the first stop lever for selectingthe next letter.

In operation the stop lever 9i. and at times the stop lever 92, do notalways engage with their corresponding stop fingers during the settingoperation of the stop finger element 11. This is especially true if thecharacter selected by the previous operation is at a point on thetypewheel from which it will have to turn through a large arc to itsnormal stop position, that is, where the stop finger 86 would engagewith the stop lever 96. Under such conditions and where a selectioncomprising marking signals I, 2 and '3 will follow immediately, the stoplevers 9I and 92- would probably not engage with the stop fingers 85 and84, respectively, but the stop lever 98 would fall into place behind thestop finger 84 but in front of the stop finger 83 and stop the stopfinger assembly and the typewheel at the proper place corresponding tothe signals re-, ceived.

It is important to note that the degree of mo,- tion of the stop fingerelement 11 decreases progressively as the successive stop levers areoperated. This feature distinguishes the present invention from priorart devices wherein the type wheel does not start rotating from its lastprinting position until the first signal of the following letter hasbeen received; whereas in the pres ent printer the typewheel sta'rtsrotating immediately after the letter is printed and before the cycle ofoperation representing that letter is completed so that normally, in thepresent invention, the typewheel is always at a zero position. This isimportant as by this arrangement the type wheel has more time to assumeits start and subsequently its first selected position of a follow ingletter, all of which makes possible the operation of the present machinewithout devices for storing the signals as'they are received and withoutdevices for overlapping the selection and printing into the followingletter.

Printing Printing of the selected characters is accomplished by themechanism now to be described. A function operating shaft I60 (Figures 1and 2) has a bearing in frame member II and extends through the framemember I2 and is driven from the motor I6 through the gear 59 and thegear I62 through the friction device I83. One end of the shaft I60 isprovided with a collar I64 which serves to position the shaft withrespect to the frame members II and I2. The collar I64 bears against theboss which provides a bearing for the shaft I60 in the frame member II.The portion of the shaft I60 which projects beyond the frame member I2carries the rotating bail I6I in proper relation with a series of codebars comprising a portion of the function operating mechanism laterdescribed. A cam I61 which comprises a part of thefriction device 69 isprovided with a notch I68 (Figure 11). This cam notch-cooperates withone arm I69 of a bell crank trip lever "I which is pivoted upon a studI12 secured to the frame member I 2. The second arm I13 of the bellcrank trip lever I1I is adapted to engage any one of the three camprojections I14 formed on the cam disc I16 which is carried by androtates with shaft I60. The cam disc I16 may'conven- 'ery of the cam I19by a spring I82 (Figure 4).

The gear 52 previously described which is slidably mounted on thesquared portion 54 of the rotatable shaft 56 is held in proper relativeposition with the gear 5| by means of a depending fork I84 of thecarriage arm 4|. The said fork carries rollers I85 engaging each side ofthe gear 52.

In operation of the printer, when any given character has been selectedas explained previously by rotation of the rotary selecting device I32,the cam I61 engages the trip lever Ill when the lug I41 of the selectiontransfer element M5 has just passed the end I02 of the stop lever 95. Atthis time the end I69 of the trip lever Ili drops into the notch I68 torelease the function operating shaft I60 for rotation which thereuponturns through one-third of a revolution. The function operating shaft isthen stopped by the arm I13 engaging with projection or cam tooth I14 onthe cam I16. During this rotation of the function operating shaft, theprinting arm I8! drops into one of the three recesses I89 of the cam I19and the action of the spring I82 rotates the squared shaft 48 slightlythereby pressing the typewheel against the record paper or sheet 55.

This action is to insure the accurate positioning of the typewheel sothat a clear print of each character is had. A centering disc E81 isprovided shown in detail in Figure 8 and in position on the typewheelspindle 39 in Figure 5. The centering disc is provided with deep notchesI90 and shallower notches 592. A centering finger I98 is pivotaliycarried by a pin I89 and is biased away from the centering wheel or discI81 by a spring I9I. The centering finger I88 normally rests against thestop bar I93 which extends across the printer and is mounted on theframemember I2 and the bracket 49. .When the typewheel carriage 43 isoperated to print, the lever I88 fulcrums on the bar I93 forcing theformer into engagement with one of the notches I90 in v the centeringdisc i 81.

Letter space The typewheel carriage 43 is spaced the proper distancebetween each character printed by means of the apparatus now to bedescribed. Depending from the lower portion of the typewheel carriage 43is an arm I91 having a post I98 on which is pivoted a spacing pawl I99and a retaining pawl 200. These pawls are shown in detail in Figures 5and '7 of the drawings. The end of the spacingpawl I99 is laterallyelongated as indicated by the reference character I and the end of theretaining pawl 200 is likewise elongated as indicated at 203. These twopawls are normally held in engagement respectively with a slidablymounted spacing rack 205 and a fixed retaining rack 206, both of saidracks being mounted on the frame I2 and the bracket member 49. Slidingmovement of the bar 205 is provided by the elongated slot or hole 201 ateach end, which is received on the carrying pins or studs 208, one ofwhich is secured to the frame member I2 and the other to the dependingoffset portion of the bracket 49. A pawl release bar 2I0 is mounted onthe studs 208 between the bars 205 and 206 by means of sloping elongatedslots 2I2 adjacent each end of the said bar. The slide mounting for thebar 2| 0 provided by the inclined slots 2I2 causes this bar to be raisedwhen it is moved to the right in a manner to be described in connectionwith the type carriage return function.

Spacing of the type carriage 43 occurs when the function operating shaftI60 rotates one third of a revolution upon release of the trip lever I1Iin the manner described in connection with the printing operation. Oneof the lobes of the three lobe cam I18 permits the spacing bar 205 tomove to the right under the influence of the spring 2I6 by reason of theroller 2I1, which is carried by the bracket 2I8 secured to the spacingrack, dropping into the depression provided by the lobe of the cam. Asthe spacing rack 205 moves to the right, the amount determined by thelength of the slot 201, the typewheel carriage 43 moves with the rack205 to a position in readiness to print the next character and it isretained in this position by the retaining pawl 200 engaging thestationary rack 206. The spacing rack 205 is returned by the lobe of thecam I18 in readiness to move the type carriage following printing of thenext character. It will be noted that the notches of the cam I19 and thelobes of the cam I18 are angularly spaced with respect to each other insuch a manner that the printing arm I 8| is permitted to operatefollowing which the spacing rack 205 moves to the right to position thetypewheel carriage for printing the next character to be received by thepinting magnet 20. Also it will be noted that the function operatingshaft I60 is stopped by a projection I14 of the cam I16 just as the armI8I is about to enter notch I in the cam I19. Therefore printing of acharacter will occur almost immediately upon rotation of shaft I60 whenit is released by the trip lever Hi. The trip lever I in accordance withthe foregoing description releases the shaft I60 for rotation of degreesjust as the progressive selection of a letter or character isaccomplished.

In the embodiment of the invention disclosed, the typewheel is inked byan ink roller 220 which is mounted on the typewheel carriage 43. The inkroller 220 bears against the type faces on the typewheel 38 and iscarried by a pair of arms 22I which are pivoted upon a lateral extension222 of the typewheel carriage. An ink reservoir 223 is mounted on themain frame member I2 and whenever the carriage returns to the startingposition the ink roller 220 will contact with a wick 224 in the inkreservoir for the purpose of replenishing the supply of ink on theroller;

Platen support The paper platen 53 is supported in a rocking framecomprising two spaced frame members 226 and 221. These frame members aresecured by set screws 229 to a rock shaft 228 which extends across theprinter and is rotatablysupported in the main frame members II and I2.The platen shaft 23I is rotatably supported in forwardly extending arms232 of the frame members comprising the rocking platen frame. Paperguide rollers 234 and 236 are supported by arms which are pivotallyconnected to extending lugs of each of the frame members 220" and m asillustrated by Figures 3 and 4 of the drawings. The guide rollers 234and 236 serve in the usual manner to hold the record paper or strip incontact with the printing platen. Reverse rotation of the platen 53 isprevented by a ratchet wheel 238 which is secured to the platen shaft23I. The pawl 239 is adapted to engage the teeth of this ratchet and isheld in engaging position by a spring 2. A line or spacing ratchet 242is secured to the platen shaft 23L A lever 243 is rotatably mounted overthe platen shaft 23I and is provided at its lower end with a pawl 244which is adapted for cooperation with the teeth of the ratchet 242 forrotating the platen when the lever 243 is rocked. A lever 245 isprovided for setting the line space device to move the platen one ormore spaces. A link 246 is pivotally connected at one end to the lever243 opposite the point of pivotal connection of the ratchet 244 and theremaining end of this link is pivotally connected to a lever 241 whichis pivoted on a stud 248 supported on the frame member I2. The end ofthe lever 241 opposite its connection to the link 246 is pivotallyconnected to a bar 250 (Figure 6), which is provided at its end with anupwardly projecting portion 25I and is notched to provide a bailengaging finger 252.

A lever 254 is secured to the platen frame supporting shaft 228 by meansof a set screw 255 so that when rocking movement is imparted to thelever 254 it will rock the shaft 228 which in turn will raise or lowerthe platen 53 from its unshifted or lower case position to the shiftedor upper case position. A lever 251 is pivotally secured on the frame I2at 251a and is provided with an upwardly extending tongue 258 which isadapted to cooperate with a stop 25!! which projects from the lever 254into the path of the extension 258. The lever 254 is provided with asecond stop 26I which is adapted to contact with the edge of the lowerportion of the lever 268. The lower end of the lever 251 is pivotallyconnected to a forwardly extending pull rod 264 which is provided at itsend with an upwardly projecting portion 265 and a bail engaging finger286. The pull rod 264 operates the platen frame to its shift or uppercase position in a manner to be later described. The lever 258 isrotatably mounted on the platen shaft 228 and its free end is pivotallyconnected to a third pull bar 210 which like the previously describedpull bars is provided with an upwardly extending portion 2H and a bailengaging finger 212.

The pull bars 250, 264 and 210 thus far described are connected at theends opposite their bail engaging fingers to springs 215 which serve tohold them in the position shown in Figure 6 of the drawings. Theselection and operation of the pull bars will be fully disclosedhereinafter.

The platen carrying frame members are provided with extensions 218 whichare pointed at their ends as indicated by reference character 219. Apair of levers 28I, one of which is pivotally secured to each of theframe members II and I2, are each provided at its end with a roller 282which engages the pointed end 219 of the platen frame extension. Eachlever 28I is biased against the pointed end 219 by means of a spring 283so as to hold the platen frame against either of the stops 284 and 286which determine the normal and shifted position of the platen frame.

two sets of control fingers.

- Function selecting mechanism To operate the carriage return, shift,unshift, line feed, and other functions that may be required, a plate288 having control fingers extended therefrom in various planes issecured for rotation with the shaft 56.. From the description previouslygiven of the operation of the stop finger assembly ll it is to be notedthat two stop fingers 86 are provided which serve to hold the shaft 56stationary in either one of two positions and therefore the plate 288 isprovided with These control fingers (Figure 4) are numberedconsecutively and are designated by the reference characters ZQI to 29d,inclusive. The control fingers of the complementary set which extendabove the shaft 56in Figure 4 have been given the same referencecharacters. It will be noted that control fingers 29l are in radialalignment and likewise the remaining three sets of fingers are in radialalignment. The radially aligned control fingers of each set lie in thesame plane.

When the shaft 56 rotates the control fingers 298 of the plates 288engage the upper projection 25! on the pull bar 250 and in a like mannerthe fingers 292 and 293 cooperate respectively with the projections 265and 215 on the pull bars 264 and 270. The function of the controlfingers 294 will be explained in detail hereinafter.

As the shaft 58 rotates in response to received line signals the controlfingers pass over the pull bars pressing them downwardly and if theshaft 56 is stopped by transmission of a. particular charactercombination to operate a function positioning one of the fingers overits corresponding pull bar, the bail engaging finger of this pull barwill catch upon one of the projections 299 of the bail lBl so that theselected bar will be pulled forwardly when the bail is rotated uponrotation of the shaft I50. As previously explained, the rotation ofshaft "30 is initiated by release of lever ill from the cam lit.

Line feed and carriage return The platen 53 is rotated to advance thepaper sheet or web vertically to the next line to be printed by the pullbar 250 under control of the fingers 295, the lever 241 and the link206. A

bell crank 302 (Figure 7) comprising an arm 303 and a second arm 304 atright angles thereto is pivotally mounted on a stationary pivotalmounteing 305. The arm 303 is engaged by the edge of on the pull bar 250, andthe arm 30% 308 in the pull release bar a lug 301 engages a notch 2l0.As previously explained, the bar 2l0 as it nected at one end to anupstanding bracket 3H secured to the base M of the printer. The free endof the spring is connected to an arm 3l2 pivotally secured at am to theframe of the typewheel carrier and at its remaining end to the free endof an arm 8!! which is plvotally connected to the bracket 3! i by a boltand nut SIG or other suitable securing means. Bythis means asubstantially constant force is maintained tending to draw thecarriageto the left. To

' maintain the bar 2"! in operative position to which it is moved by thepull bar 250 until the typewheel carriage completes its travel to theleft, a latch device comprising a bell crank latch M8 is mounted on themain frame member 52.

.The arm" 3! of the latch is provided with a hooked detent 32! whichholds the arm 39% on the bar 2! in operative position until the lug 822carried by the typewheel carriage strikes the arm 323 of the latch 3B8thereby releasing the bell crank 302 and permitting the bar Zlil toreturn to its normal position. A spring 32 serves to guide the latchingmember Mtto holding position.

The operation of the line feed and carriage mechanism in response to areceived signal com bination for these functions will now be de scribed.Upon receiving a signal combination for line feed on the magnet 2d, theshaft 58 will be turned by operation of the levers 9i and @El which areselected for operation by the roller lit on the armature 24 in themanner previous y explained. The total rotation of the shaft Qt inresponse to this received signal will place the control finger 29G overthe end of the pull ba 250 pressing it downwardly so that finger 2&2adjacent its end hooks over the amal projection 298 on the bail lfil.Shaft ltfiis next released for rotation by operation of the pawl Ellwhich causes the bail ltl to be rotated in a clockwise direction asviewed on Figures 4 and 6.

The bar 250 is drawn forwardly to the right as viewed on Figure 6 andthe bell crank lever tilt is rocked by reason of the bell crank leverarm are engaging the edge of the lug Sal. Movement of the bell cranklever 302 causes its arm 3% to carry the bar 2m to the right and also toraise the bar 2w by reason of its inclined slotted connection. The pawlsN9 and 209 are raised from their notches in the bars 285 and 2%whereupon the typewheel carriage i3 is permitted to move to the leftunder the influence of springs 398. As the bar 2i0 is retained in itsraised position by engagement of the latching detent 32H with the erm305 of the bell crank, the typewheel carriage continues its movementuntil it returns to its normal or starting position. -i ls it arrives atits starting position the lug 322 causes the bell crank lever 302 to bereleased permitting the bar 2m to return to its normal or lower positionwhereupon the pawls 999 and 200 are again ready to function to feed thecarriage to the right as successive characters are printed.

When the pull bar 250 is drawn forwardly by the bail BM in addition tooperating the carriage return mechanism, it rocks lever Z-tl about itspivot drawing the link 246 to the left and thus rocking the lever 243 ina counter-clockwise direction as viewed on Figure 4. During thistime thepawl 2% is engaged with the tooth of the ratchet wheel 242 to feed thepaper sheet or web 55 from one line to the next.

While an automatic carriage return has been disclosed and described, itwill be obvious that the line feed function may be separated from thecarriage return function and a separate pull bar may be provided forcooperation with a ball to return the carriage when a separate carriagereturn signal is received by the receiving magnet 2%.

When the rotating bail ltl has nearly com- 'pleted its cycle ofoperation, that is, has de nearly one third of a revolution. the bar 2B0automatically disengages from the axial projection Ell par

299 of the ball by reason of the circular motion of the bail and thepull bar 250 is then returned to its normal position by its spring 275.

Figure shift mechanism When a combination of signals is received on themagnet 20 to select the shift function that is to place the mechanism inposition to print figures, such a signal combination will position theshaft 56 so'that the control finger 292 will extend downward over thepull bar 2% (Figures 4, 6 and depressing the pull bar 264 so that it isin the path of the rotating bail lSi. when the shaft I50 is released andthe bail iii! rotates, the pull bar 264 is pulled forwardly. The lever2% is rocked in a counterclockwise direction as viewed on Figure 4 ofthe drawings, and; the upwardly. extending end 258- of this leverpresses against the stud 259 on the lever 254 thereby causing the platen53 to be lowered. As the platen is lowered the rollers 2832 press theextensions 2M5 of the platen frame against the stop 286 holding thecarriage firmly in its lower or figure a printing position which is alsoknown as the upper case position. Initiation of the figure shiftoperation is illustrated diagrammatically on Figure 15 of the drawings,which shows the finger 292 pressing the end of the pull bar 26 1 intoengagement with the bail $81. figure 14 of the drawings shows theposition of the platen frame and the lever 256 after the flgure shiftoperation has occurred.

Letter shift The third pull bar 2% cooperates with the con trol finger2923 (Figures 4, 6 and 14) in the manner previously explained inconnection with the line feed" function and the figure shift function.When this pull bar is drawn forwardly by rotation of the bail till, theplaten frame is restored to the position for printing letters from theupper row of characters on the typewheel. This is accomplished by thelever 298, which as previously explained is freely pivoted on the platenframe shaft 226, being drawn forwardly into engagement with the stud263i on the arm 256, causing the platen to be raised until the frameextensions Elli are pressed against the stops 2% by the rollers 2S2.

Letter feed look It is obvious that when some of the functions of theprinter are to be performed, movement of the type carriage must besuspended. A character will not be printed upon the paper sheet or webinasmuch as when operation of certain of the functions is selected ablank portion of the typewheel comes opposite the paper sheet or web andeven though the typewheel carriage is rocked, printing does not occur.The typewheel is kept from contact with the paper by the finger inencountering a shallow notch I92 in the disc ill. T0, at times, suspendmovement of the type carriage the following mechanism is provided. Aninterference latch I (Figures 1, 4 and 7) having a body portion "I! ispivoted'on the stud ill secured to the frame member II. The interferencelatch 32! engages a notch I in the spacing rack "I. The function pullbars are provided with com surfaces 334 which engage the tail piece I ofthe latch 829, causing it to engage the notch' Ill and prevent thespacing or letter feed operation. A spring I88 normally prevents thelatch 32! from seating in the notch 833.

. Signal bell control To operate the function such as ringing a bell orto operate switching mechanism at the receiver if desired, a specialarrangement for operating the function pull bars is provided, whichcomprises acontrol bar 338 (Figures 4, 6 and 13) which has a laterallyextending upward projection 339. The projection 339 corresponds infunction to the projection on the previously described pull bars andcooperates with one of the control fingers 294. A fourth pull bar 34! ismounted on an arm 396, said arm being secured to revolve with the platencarriage shaft and rock therewith. The pull bar 34! is thus depresseduntil its projection engages with the tooth 299 of the bail it! and thebar 36! is drawn forwardly and released whereupon the clapper 341strikes the bell 368 to give an audible signal. It will be understoodthat the code combination for signal may be the code combination forselecting any of the letters of the alphabet in which a blank space isprovided on the typewheel in the upper case. After the signal has beengiven the platen frame can be restored by transmission of the letter orunshift signal whereupon printing of letters may be resumed.

Pull bar guide To insure the full operation of the pull bars 250, 264,210 and 3M and to permit the shaft 56 to revolve immediately after thefunction selection has been made, all of the pull bars are provided withprojections 350 which are adapted to engage the underside of a plate 350when the pull bars move forward thereby holding the pull bars in adepressed position until the pulling operation is completed. A plate 352is placed under the pull bars so as to prevent them from dropping downand following the rotating ball ifil beyond the disengaging position.The plates 535i and 852 are supported from a bracket 353 which issecured in any suitable manner to the main frame member 42. Each of thepull bars is provided with a spring 356 to hold it in normal or raisedposition out of engagement with the rotary ball or cam it i.

From the foregoing complete description of the selector mechanism andprinter embodying my present invention and the operation of its severalparts. it is believed that its general operation in service will beunderstood. As each letter of a message is received by the magnet overthe signal channel to which its leads are connected, the signal elementsof the code combination for that letter are received in succession bythe magnet 25! and each signal element if it be a marking impulse setsone of the stop levers ill to 95, advancing the typewheel driving shaftuntil the selected letter is in position to print. Immediately after thefifth signal impulse has been received, whether it be a marking or aspacing impulse. the rotating selector shaft 68 causes release of thefunction operating shaft I60 whereupon the function operating shaft isfree to turn through a distance of 120 degrees, or a third of arevolution. The rotary ball or cam IBI secured to the shaft I80 alsoturns through a third of a revolution, but if none of the functioncontrol fingers on the disc 2l8,have been positioned over the functionpull bars by the code combination, reception of which has Just beencompleted, none of the pull bars will operate. but rotation of the shaftI60 automatically performs two of the printer functions, namely, letterspace or feed and causes the typewheel to be pressed against the paperweb or sheet 55. The automatic spacing The automatic printing functionis performed by one of the notches of the cam I19 permitting rocking ofthe typewheel 39. Rotation of the shaft I60 automatically performs thefurther, function of restoring the parts of the printer to normalposition for receipt of the next code combination of signal impulses'byoperating thel'ever I53 to release the stop finger shaft 56 and permitit to return to normal or starting position.

When a. code combination for a function operation is received one of thefingers, according to the particular function selected, is positionedover its corresponding pull bar and the pull bar is moved forwardly bythe bail |6I upon rotation of the shaft I60 which is initiated in thesame manner as when a code combination for printing of a characteris'received. The selected pull baroperates the particular and desiredfunction, but the latch 329 automatically prevents spacing or feeding ofthe typewheel carriage. Should the received code combination of signalsselect the pull bar 250 which upon operation feeds the paper upwardly adistance of one line, the carriage return function controlled by thebell crank lever 302 is automatically operated to return the carriage toits normal position ready. for printing of the next line.

At any time an audible signal may be received without mutilating themessage on the paper web 55 by transmitting the codecombination forfigure shift followed by an appropriate code comaination for signal,whereupon the pull bar 3 will be selected to operate the bell signal.

It will be seen from the foregoing that I have provided a simplifiedform of selecting mechanism in which the successive impulses of thereceived code combination of signals, directly and progressivelyposition the typewheel so that the typewheel is brought to the elementturning position when the last code signal is received. This mode ofoperation eliminates the necessity for providing a means for storingselections or to provide overlap for printing action.

Figure 1'7 of the drawings illustrates an arrangement whereby thesprings which bias the pull bars from engagement with the .bail may beeliminated. The pull bars of which pull bar 250a is illustrated, areprovided with a tongue 252a having an inclined surface 400 which isadapted to be engaged by the tooth 299 of the bail IBI. The pull barsare shown in their normal position by Figure 17 in which they are all incontact with the bail IBI. When one of the stop fingers, for examplestop finger 29la is positioned over the upwardly projecting portion 251aof the pull bar which is to be operated, the said finger causes the pullbar to be held down in engagement with the bail I 6| so that when thebail is rotated the pull bar is moved by the bail. As the bar is moved,the cam surface 350a thereon is drawn under the bar m whereby the finger252a is maintained in engagement with the tooth 299 until the barcompletes its movement and is released from engagement with the bail.

The remaining pull bars which are not to be operated when the bail Nilis released for rotation are pressed upwardly by reason of the slopingcam surfaces 400 and do not operatively engage the tooth 299 of thebail. When a character is selected for printing all of the pull barswill be pressed upwardly upon rotation of the shaft I60.

An important feature of the modification just described is that thefingers on the disc 28! do not strike the lugs on the function operatingpull bars while it is rotating during selection of a letter, since thepull bars are out of the path of the rotating fingers.

The invention may be embodied in other specific forms without departingfrom the spirit or essential characteristics thereof. The presentembodiment is therefore to be considered in all respects as illustrativeand not restrictive, the scope of the invention being indicated by theappended claims rather than by the foregoing description, and allchanges which come within the meaning and range of equivalency of theclaims are therefore intended to be embraced therein.

What is claimed and desired to be'secured by United States LettersPatent is:

1. In a printing telegraph machine, a two factor permutation codeselecting mechanism, and printing means, a series of stops, one for eachprinting position, separately movable stop means, one for each unit of acode, and means on said stop means engaged by said selector mechanismfor cooperation with said series of stops to directly' and progressivelycontrol said printing means.

2; In a printing telegraph machine, a plurality of type faces, aselecting mechanism comprising a plurality of stops, one for each typeface and a plurality of separately movable means responsive to a seriesof code signals and directly and progressively acting upon said stops,always in the same succession to position a desired type face intoultimate printing position when the last code signal is received.

3. In a printing telegraph receiver, a movable typewheel for printingcharacters, means for bringing said typewheel in a selected printingposition including a shaft on which is mounted a member having a seriesof stops in different planes and progressively doubling in number, onestop for each printing position of the typewheel, a series of separatelymovable stop members, one for each unit of a code, and means toselectively position one or more of said stop members to therebyposition the typewheel.

4. In a telepgraph receiver in which the record is printed from atypewheel, typewheel drive mechanism, means to positionthe typewheelcomprising an electromagnet for receiving two factor permutation codesignals and a permutation code selector operated thereby, separatelymovable stop members, one for each unit of the permutation code andoperated by said permutation code selector, and a series of stopsprogressively doubling in number attached to the typewheel drivemechanism with which said firstmentioned stops cooperate to position thetypewheel in accordance with the received signals.

5. In a telegraph receiver, a typewheel, a drive shaft for saidtypewheel provided with stops, one for each printing position, in aseries of rows and which progressively double in number as to the rows,separately movable stop members, one for each row of said first-namedstops and means to selectively operate the stop members to position thetypewheel in accordance with the received code combinations.

6. A telegraph receiver in which a printed I I drive shaft beingprovided with duplicate .rows

of stops, one row for each unit of a permutation code by which theoperation of the printer is to be controlled, and stop members, one foreach row of rotating stops, said rotating stops being progressivelydoubled in number with respect to the rows, and a magnet to set the stopmembers in accordance with received signals and thereby position thetypewheel.

'7. A telegraph receiver in which a printed record is made from atypewheel, means to position the typewheel comprising stops, one foreach printing position of the typewheel, said stops being located ingroups, each group having double the number of stops of the previousgroup, and a series of separately movable stops, one for each of saidgroups, and a selector mechanism to selectively operate the last-namedstops to selectively position the typewheel.

8. A printing telegraph receiver comprising a magnet responsive toreceived code combinations of selecting conditions, each preceded by astart condition, a rotatable member, means to rotate said member intimed relation with the received code combination, means to initiaterotation of said member by said magnet upon reception of said startcondition, a plurality of levers, arranged to move under the jointmechanical control of said member and said magnet, and a plurality ofrotatable stop fingers in the path of and arranged to be arrested bysaid levers upon operation thereof.

9. In a selecting mechanism, a set of pivoted levers, a latch forholding said levers in operated position, means for operating saidlevers in succession, said latch being formed with an inclined face tohave an increasing engagement with the successive levers to facilitatethe release of a lever from operative position upon operation of anotherlever in said set.

10. In a printing telegraph machine, a typewheel, a rotatable shaft fordriving said typewheel. a stop finger assembly comprising a set of stopfingers secured to and rotatable with said shaft, a set of pivotedlevers adapted to be moved into engagement with said stop fingers, andmeans for moving said levers into finger engaging position, said meanscomprising a movable member having stop lever engaging devices thereon,a magnet cooperating with said stop lever engaging devices to cause saiddevices to engage said stop levers upon receipt of a signal unit as saidstop lever engaging devices successively pass said stop levers.

11. In a printing telegraph receiver, a rotatable typewheel, a driveshaft for said typewheel, means carried by said shaft for bringing saidshaft to a plurality of positions, and gear means for driving saidtypewheel from said shaft, said gear means having a two to one ratiowhereby said shaft rotates at half the speed of said relatively lighttypewheel.

12. In a page printing telegraph machine; printing means; functionmechanisms for shift, unshift, line space and carriage return; movablemeans common to said printing means and to said function mechanism forselectively positioning said printing means and for controlling theactionof said function mechanism, said movable means comprising astop-wheel having a plurality of rows of stops thereon thatprogressively double in number as to the rows; and selector means,responsive to received code signal combinations-and including means forsuccessively, engaging said stops, for operating said movable meansdirectly and progressively.

13. In a printing telegraph machine aselecting mechanism, aprintingmechanism controlled by said selecting mechanism, a spacing mechanismfor said printing mechanism, a normally stationary shaft, cam means onsaid shaft to cause a printing operation of said printing mechanism anda second cam means on said shaft for operating said spacing mechanism,said shaft being released for rotation by said selecting mechanism sothat printing and spacing operations are accomplished automatically.

14. In a printing telegraph, a movable carriage, a spacing mechanism forsaid carriage comprising a spacing member and a spring for moving saidspacing member, means to release said spacing member. to move saidcarriage a distance of one space under the influence of said spring, arotatable cam for restoring said spacing member to normal positionagainst the action of said spring, and releasable means controlled inresponse to received signals for permitting said cam to rotate.

15. In a printing telegraph machine, a rotatable typewheel, anoscillating support for said typewheel, a gear on said support formoving a character on said typewheel to printing position,

-a typewheel drive shaft and a gear on said shaft meshing with saidfirst-named gear, a notched centering device connected to saidtypewheel, a member operable upon oscillation of said typewheel supportto enter a notch on said centering device thereby to accurately locate aselected character in printing position, said gears being withdrawnslightly from meshing engagement when said support is oscillated therebypermitting said member to move said centering device and said typewheela slight amount independent- 1y of said shaft.

16. Ina telegraph receiver in which the printed record is made from atypewheel that is connected to a drive shaft, function operatingmechanism comprising fingers mounted on said drive shaft, one for eachfunction of the receiver, a plurality of function operating meansarranged for cooperation with said fingers, an operating bail for saidlatter means, and means to effect operation of said bail inpredetermined arrangement with said fingers.

17. In a printing telegraph machine, a function operating devicecomprising a movable function operating member, a bail engaging fingerand a projection on said member. a rotatable bail having a tooth forcooperation with said finger, a movable finger positioned in response toa received signal for engaging said projection to bring said finger intoengagement with said tooth, and means responsive to said received signalfor initiating rotation of said bail.

18. The combination of claim 1'7, wherein said movable member isprovided with a cam surface, and means for cooperation with said camsurface to hold said bail engaging finger in engagement with said toothafter said movable finger is moved out of engagement with said pro-J'ection.

19. A stop control mechanism for cooperation with stops on a typepositioning shaft of a telegraph recorder, comprising a series ofindependently movable stop engaging members, an additional stop engagingmember for holding said shaft in normal or start position, a latchmember adapted to engage and hold any one of said members in stopengaging position, means to operate said series of stop engaging membersin succession, said additional stop engaging mem ber being arranged tobe released from stop engagement by said latch upon operation of any one01' said series of stop engaging members, and

means to restore'said additional stop engaging member in the engagingposition after an impression has been made from the positioned type butbefore the operating cycle is completed.

20. A stop control mechanism for cooperation with stops on a typepositioning shaft of a telegraph recorder, comprising a series ofindependently movable stop engaging members, an additional stop engagingmember for holding said shaftin normal or start position, a latch memberadapted to engage and'hold any one of said members in stop engagingposition, means to operate said series of stop engaging members insuccession, said additional stop engaging member being arranged to bereleased from stop -engagement by said latch upon operation of any oneof said series of stop engaging members, a cam driven by said means tomove said latch to release a stop engaging member, and a cam to restoresaid additional stop engaging member to normal position when saidfirst-named cam moves said latch, said second-named cam holding saidadditional member until said first-named cam passes from engagement withsaid latch.

21. In a printing telegraph machine, a typewheel drive shaft having astop thereon, a pivoted member engaged by said stop to determine thenormal or starting position of said shaft, a plurality of additionalstops on said shaft, ad-. ditional pivoted members adapted to engagesaid additional stops to stop said typewheel shaft in 35' a plurality ofprinting positions, a latch member adapted to hold any one of saidpivoted members inengagement with one of said stops, said latch membernormally engaging said firstnamed pivoted member to hold said shaft atnormal position, the cooperating portions of said latch member and saidpivoted members being formed so that the latch member has an increasingdegree of engagement with successive pivoted members whereby said latchreleases a pivoted member previously engaged therewith upon movement ofanother pivoted member to stop engaging position.

22. In a printing telegraph machine, a typewheel drive shaft having astop thereon, a pivoted member engaged by said stop to determine thenormal or starting position of said shaft, a plurality of additionalstops on said shaft, additional pivoted members adapted to engage saidadditional stops to stop said typewheel shaft in a plurality of printingpositions, a latch member adapted to hold any one of said pivotedmembers in engagement with one of said stops, said latch member normallyengaging said first-named pivoted member to hold said shaft at normalposition, said latch member having an inclined edge whereby said pivotedmembers overlap said latch by varying amounts, said first-namedpivoted-member overlapping said latch the least amount.

23. In a printing telegraph machine having a case shift mechanismoperable to shifted position, a function operating device operable inthe shifted position of said mechanism, comprising a function operatingpull bar provided with a bail engaging finger, a rotating bail, acontrol finger and means to position said control finger over said pullbar in response to received signals, a control bar provided with acontrol finger engaging projection, said projection being in the path ofsaid control finger in the shifted position of said mechanism to causeengagement of said ball engaging finger with said bail.

24. In a printing telegraph machine having acase shift mechanismoperable to shifted position, a function operating device operable inthe shifted position of said mechanism, comprising a function operatingpull bar provided with a bail engaging finger, a rotating bail, acontrol finger and means to position said control finger over said pullbar in response to received signals, a control bar provided with acontrol finger engaging projection, said projection being in the path ofsaid control finger in the shifted position of said mechanism to causeengagement of said bail engaging finge'r with said bail and a mechanismassociated with said pull bar and operated when said bail moves saidpull bar.

25. A printing telegraph receiver comprising a typewheel, a typewheeldrive shaft, 9. function operating shaft, and a selector shaft, adriving motor. and driving means for said shafts comprising a frictiondevice for each of said shafts; stops on said typewheel drive shaft aplurality of stop means for engaging said stops to stop said typewheelin a plurality of printing positions, a selector mechanism cooperatingwith said selector shaft and adapted to position said stop means insuccession to stop engaging position under the COIL..- 01 of receivedsignals, means on said function operating shaft to cause said typewheelto print, and means associated with said selector shaft operable torelease said funcing a friction device for each of said shafts; stops onsaid typewheel drive shaft, a plurality of stop means for engaging saidstops to stop said typewheel in a plurality of printing positions, aselector mechanism cooperating with said selector shaft and adapted toposition said means in succession to stop engaging position under thecontrol of received signals, a cam on said function operating shafthaving three cam notches, means to release said function operating shaftand arrest it after one-third of a revolution thereof to cause saidtypewheel to print, said releasing means comprising a cam associatedwith said selector shaft operable to release said function operatingshaft for rotation immediately after said selector mechanism completesits operative engagement with said control fingers, so that printing isaccomplished immediately following -selection of the character on saidtypewheel.

2'7. A telegraph receiver, a typewheel, a typewheel drive shaft,function operating mechanism comprising fingers mounted on the driveshaft, a plurality of function operating bars adapted for cooperationwith said fingers, a rotatable oper-.

vided with duplicate rows of stops, one row for each unit of apermutation code by which the operation of the printer is to becontrolled, and

stop members, one for each row of rotating stops, said rotating stopsbeing progressively doubled in number with respect to the rows and amagnet to set the stop members in accordance with received signals andthereby position the typewheel, function operating mechanism comprisingfingers mounted on said drive shaft, one for each function, to positiona plurality of function operating bars into the path of an operatingbail to be operated thereby.

29. In a telegraph receiver, a stop element having a plurality of rowsof stops thereon, a series of separately movable stop members arrangedto engage said first stops, and means to selectively actuate the. stopmembers to position said stop element in accordance with a desiredsetting, the stops on said stop element increasing in number insuccessive rows so that the degree of motion of said stop element asdefined by said stop members decreases progressively as said stopmembers are operated.

30. A telegraph receiver in which a printed record is made from atypewheel, means to position the typewheel comprising stops, one foreach printing position of the typewheel, said stops being located ingroups, each group having double the number of stops of the previousgroup, a selector mechanism to selectively operate said groups of stopsprogressively from a smaller to a larger group to selectively positionthe typewheel whereby the degree of motion of said typewheelcorresponding to the actuation of said last named stops decreasesprogressively and printing means to cooperate with said typewheel toeffect printing, means to operate said printing means, and means to freesaid printing means from said typewheel before said typewheelpositioning means comes to its normal stop position.

31. In a printing telegraph machine, a plurality of type faces,selecting mechanism comprising a plurality of stops adapted to beselectively controlled in response to code signals, means having apredetermined cycle of operation arranged to act upon said stops toposi-' tion a desired type face into ultimate printing position when thelast code signal is received and before a cycle of operation has beencompleted, printing means to cooperate with said type faces to effectprinting, means to operate said printing means, and means to free saidprinting means from said type faces before said selecting mechanism andstop positioning means come to normal stop positions.

32. A function operating mechanism for a telegraph printer comprising aplurality of rotating function control fingers, a plurality of functionoperating bars corresponding to said fingers and subject to operationthereby, both said fingers and bars being individual to the functions,

land a common operating bail in the path of ,which said operating barsare placed when operated by said control fingers.

33. A function operating mechanism for a telegraph printer comprising aplurality of rotating function control fingers, a plurality of functionoperating bars corresponding to said fingers and subject to operationthereby, both said fingers and bars beingindividual to the functions,and a common operating bail in the path of which said operating bars areplaced when operated by said control fingers, and means to maintainengagement between a selected function operating bar and the commonoperating bail after the control finger is removed from functionselecting position.

34. In a printing telegraph receiver, a rotatable typewheel, a driveshaft for said typewheel, means carried by said shaft for bringing saidshaft to a plurality of positions, and gear means for driving saidtypewheel from said shaft, said gear means having a ratio such that saidtypewheel rotates at a relatively greater speed than said drive shaft.

35. A printing telegraph receiver comprising a typewheel, a typewheeldrive shaft, a function operating shaft and a selector shaft, 9. drivingmotor and driving means for said shafts comprising a friction device foreach of said shafts; stops on said typewheel drive shaft, stop leversfor engaging said stops to stop said typewheel in a plurality ofprinting positions, a selector mechanism carried by said selector shaftand adapted to position said levers in succession to stop engagingposition under the control of received signals, a cam on said functionoperating shaft having a plurality of notches, means to release saidfunction operating shaft and arrest it after a predetermined extent ofrevolution thereof to cause said typewheel to print, said releasingmeans comprising a cam associated with said selector shaft operable torelease said function operating shaft for rotation immediately aftersaid selector mechanism completes its operative engagement with saidcontrol fingers so that printing is accomplished immediately followingselection of the character on said typewheel.

36. In a printing telegraph machine, printing means, stop means foroperating said printing means, selector levers for controlling said stopmeans, selective means to place said selector levers in controllingrelation to said stop means, and means dependent on the character ofsignals received to render said selective means effective.

37. In a permutation code printing telegraph receiver, printing means,stop means for positioning said printing means comprising a series ofrows of stops, each row being progressively doubled with respect to thepreceding row, one row for each unit of a permutation code by which thereceiver is to be controlled, a plurality of separately movable selectormembers, one for each row of stops, and means to operate said selectormembers and to position said printing means in accordance with thereceived code signals.

38. In a printing telegraph receiver; a rotatable shaft; printing meansconnected to said shaft for rotation thereby; function operatingmechanisms; function mechanism control means function operating meansand said. printing means.

40. In a printing telegraph receiver, function 70 select said means inaccordance with received 3 signals, and universal means for operatingsaid operating means and printing means, means to select said means inaccordance with received signals, means to operate said latter meanscomprising selector operating means,- means for driving said lattermeans in synchronism with the received signals, and universal meansdriven by said driving means for operating saidfunction operating meansand said printing means. 41. In a printing telegraph receiver, printingmeans, function operating mechanism; selectively controlled meansresponsive to received code signal combinations for positioning saidprinting means and operating said function mechanisms, means foroperating said printing means, and means for preventing operation ofsaid latter means when a function operating signal is received.

42. In a printing telegraph receiver, a shaft,

printing means connected to said shaft, function operating means,selector means connected to said shaft for positioning said printingmeans and selecting said function means, means for operating saidprinting means, and means. connected to said shaft for preventingoperation of said latter means when a function operating. signal isreceived.

43. In a printing telegraph receiver, function operating means andprinting means, means to select said means in accordance with receivedsignals, and universal means for operating said function operating meansand said printing means including means to operate said functionoperating means and said printing means prior to the completion of thecycle of said selecting means.

44. In a printing telegraph receiver, function operating means andprinting means, means to select said means in accordance with receivedsignals, means to operate said latter means comprising selectoroperating means, means for driving said latter means in synchronism withthe received signals, and universal means driven by said driving meansfogoperating said function operating means and said printing means priorto the completion of the cycle of said selecting means.

45. In a printing telegraph receiver, printing means, function operatingmechanism, selectively controlled means responsive to received codesignal combinations for positioning said printing means and operatingsaid function mechanisms, means for operating said printing means priorto the completion of the cycle of said signal responsive means, andmeans for preventing operation of said latter means when a functionoperating signal is received. v

46. In a printing telegraph receiver, a shaft, printing means connectedto said shaft, function operating means, selector means connected tosaid shaft for positioning said printing means and selecting saidfunction means, means for operating said printing means prior to thecompletion of a cycle of said selector means, and means connected tosaid shaft for preventing operation of said latter means when a functionoperating signal is received.

47. In a printing telegraph receiver, function operating means, printingmeans having a normal position, means to select said function operatingmeans and said printing means in accordance with received signals, anduniversal means for operating said function operating means and saidprinting means including means to operate said printing means and permitsaid printing means to resume normal position prior to the completion ofthe cycle of said selecting means.

48. In a printing telegraph receiver, function operating means, printingmeans having a normal position, means to select said function operatingmeans and said printing means in accordance with received signals, meansto operate said latter means comprising selector operating a means,means for driving said latter means in synichronism with the receivedsignals, and universal means driven by said driving means for operatingsaid function operating means and said printing means and permittingsaid printing means to return to normal position prior to the completionof thecycle of said selecting means. 49. In a printing telegraphreceiver, printing means having a normal position, function operatingmechanism, selectively controlled means responsive to received codesignal combinations for positioning said printing means and operatingsaid function mechanism, means for operating said printing means' andpermitting it to return to normal position prior to the completion ofthe cycle of said signal responsive means, and

means for preventing operation of said latter means when a functionoperating signal is received.

50. In a printing telegraph receiver, a shaft having a normal startposition, printing means connected to said shaft, function operatingmeans, selector means connected to said shaft for positioning saidprinting means and selecting said function means, means for operatingsaid printing means and permitting said printing means and said shaft toreturn to normal position prior to the completion of a cycle of saidselector means, and means connected to said shaft for preventingoperation of said latter means when a function operating signal isreceived.

termined arrangement with said fingers prior to the completion of acycle of said selective means.

52. In a printing telegraph receiver, function operating means, printingmeans having a zero position, means to select said function operatingmeans and said printing means in accordancewith. received signals, meansto operate said latter means comprising selector operating means, meansfor driving said latter means in synchronism with the received signals,and means for initiating the operation of a function after the selectingcycle is completed and before the return of the printing means to zeroposition.

'53. In a printing telegraph machine, a two factor permutation codeselecting mechanism, function operating means and printing means havinga zero position, a series of stops, one for each function and printingposition, stop means, one for each unit of a code, means on said stopmeans engaged by said selecting mechanism for cooperation with saidseries of stops to control said function and printing means, and meansfor initiating the operation of a function after the selecting cycle' iscompleted and before the return of the printing means to zero position.

54. In a printing telegraph receiver, function operating means, atypewheel having a zero position, a drive shaft for said typewheelprovided with stops, one for each printing position, in a series of rowswhich progressively double in number as to the rows, stop members, onefor each row of said first-named stops, means to selectively operatesaid stop members to position said typewheel in accordance with thereceived code combination, and means for initiating the operation of afunction after the selecting cycle is completed and before the return ofsaid typewheel to zero position.

55. In a printing telegraph receiver, a typewheel having a normal stopposition, means for bringing said typewheel in a selected printingposition including a shaft on which is mounted a member having a seriesof stops in different planes and progressively doubling in number, onefor each printing position of said typewheel, a series of stop members,one for each unit of a code, means to selectively position one or moreof said stop members to thereby position said typewheel, means to effectprinting from said typewheel, and means to permit said typewheel tostart for its normal stop position after printing and before completionof the selecting cycle.

56. In a printing telegraph receiver, a typewheel, a drive shaft forsaid typewheel, a stop Wheel on said shaft provided with stops, one foreach printing position, in a series of rows which progressively doublein number as to the rows, stop members, one for each row of saidfirstnamed stops, means to selectively operate the stop members toposition the typewheel in accordance with the received codecombinations, function operating mechanism comprising fingers mounted onsaid drive shaft, one for each function of the receiver, and a pluralityof function operating means arranged for cooperation with said fingers.

'7. In a printing telegraph receiver, function operating mechanisms,selecting mechanism for said function operating mechanisms comprising aplurality of stops, one for each function operation, and meansresponsive to a series of code signals for directly and progressivelyacting upon said stops, always in the same succession, to position meansto operate one of said function operating mechanisms.

58. In a printing telegraph receiver, printing means, function operatingmechanisms, selecting mechanism for said function operating mechanismscomprising a plurality of rows of rotating stops, said stopsprogressively doubling in num her as to the rows and including a stopfor each printing position and a stop for each function operation, andmeans responsive to a series of code signals for directly andprogressively acting upon said stops, always in the same succession, toposition means to operate said function operating mechanisms.

59. In a printing telegraph receiver, function operating mechanismsincluding a case shift mechanism, selecting mechanisms for said functionoperating mechanisms comprising a plurality of stops, one for eachfunction operation including said case shift operation, and meansresponsive to a series of code signals for directly and progressivelyacting upon said stops, always in the same succession, to position meansto operate said case shift mechanism. i

60. In a printing telegraph receiver, printing means, function operatingmechanisms including a case shift mechanism, selecting mechanism forsaid function operating mechanisms comprising a plurality of rows ofrotating stops, said stops doubling in number as to the rows andincluding a stop for each printing position and a stop for said caseshift operation. and means responsive to a series of code signals fordirectly and progressively acting upon said stops, always in the samesuccession, to position means to operate said case shift mechanism.

61. In a printing telegraph receiver, function operating mechanismsincluding a line feed and carriage return mechanism, selecting mechanismfor said function operating mechanisms comprising a plurality of stops,one for each function operation including said line feed and carriagereturn operation, and means responsive to a series of code signals fordirectly and progresslvely acting upon said stops, always in the samesuccession, to position means to operate said line feed and carriagereturn mechanism.

62. In a printing telegraph receiver, printing means, function operatingmechanisms including a line feed and carriage return mechanism,selecting mechanism for said function operating mechanisms comprising aplurality of rows of rotating stops, said stops doubling in number as tothe rows and including a stop for each printing position and a stop forsaid line feed and carriage return operations, and means responsive to aseries of code signals for directly and progressively acting upon saidstops, always in the same succession, to position means to operate saidline feed and carriage return mechanism.

63. In a printing telegraph receiver, function operating mechanismsincluding a signal function mechanism, selecting mechanism for saidfunction operating mechanism comprising a plurality of stops, one foreach function operation including said signal function operation, andmeans responsive to a series of code signals for directly andprogressively acting upon said stops, always in the same succession, toposition means to operate said signal function mechanism.

64. In a printing telegraph receiver, printing means, function operatingmechanisms including a signal function mechanism, selecting mechanismfor said function operating mechanisms comprising a plurality of rows ofrotating stops, said stops doubling in number as to the rows andincluding a stop for each printing position and a stop for said signalfunction operation, and means responsive to a series of code signals fordirectly and progressively acting upon said stops, always in the samesuccession, to position means to operate said signal function mechanism.

\ EDWARD E. KLEINSCHMIDT.

DlSCLl-UMER 2,192,350.Edward E. Kleinsck/Im'dt, Highland Park, Ill.SELECTIVE SYSTEM AND PRINTING TELEGRAPH APPARATUS. Patent dated March5,1940. Disclaimer filed August 27 1941, by the inventor. Hereby entersthis disclaimer to claims 30 and 31 in said specification.

[Ofiioial Gazette September 30, 1941.] i

